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File:Cheyenne Mountain Air Force Station celebrates 50 years 160415-F-SO188-089.jpg - Wikimedia Commons
![CHEYENNE MOUNTAIN AIR FORCE STATION, Col. - Combined and joint service members from Cheyenne Mountain Air Force Station, Colo., celebrate the installation's 50th anniversary outside the north portal of CMAFS, June, 22, CHEYENNE MOUNTAIN AIR FORCE STATION, Col. - Combined and joint service members from Cheyenne Mountain Air Force Station, Colo., celebrate the installation's 50th anniversary outside the north portal of CMAFS, June, 22,](https://l450v.alamy.com/450v/p47ytd/cheyenne-mountain-air-force-station-col-combined-and-joint-service-members-from-cheyenne-mountain-air-force-station-colo-celebrate-the-installations-50th-anniversary-outside-the-north-portal-of-cmafs-june-22-2016-cmafs-held-a-50th-anniversary-ceremony-which-hosted-more-than-300-distinguished-visitors-a-self-guided-history-tour-of-the-north-tunnel-and-blast-doors-and-executed-an-unprecedented-media-campaign-including-multiple-celebrity-visitors-p47ytd.jpg)
CHEYENNE MOUNTAIN AIR FORCE STATION, Col. - Combined and joint service members from Cheyenne Mountain Air Force Station, Colo., celebrate the installation's 50th anniversary outside the north portal of CMAFS, June, 22,
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Top secret NORAD base buried deep inside Cheyenne Mountain opens its 23-ton blast doors | Daily Mail Online
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